Finding the Fourth Proportional to 9,713.84, 13,405.05 and 5,522.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,713.84 : 13,405.05 = 5,522.09 : x
2. Step 2: Convert to fraction form
   9,713.84/13,405.05 = 5,522.09/x
3. Step 3: Cross multiply
   9,713.84x = 13,405.05 × 5,522.09
4. Step 4: Simplify right side
   9,713.84x = 74,023,825.53
5. Step 5: Solve for x
   x = 74,023,825.53/9,713.84
6. Step 6: Final answer
   x = 7,620.45